% IMPORTANT: The following is UTF-8 encoded.  This means that in the presence
% of non-ASCII characters, it will not work with BibTeX 0.99 or older.
% Instead, you should use an up-to-date BibTeX implementation like “bibtex8” or
% “biber”.

@PHDTHESIS{Zheng:1030129,
      author       = {Zheng, Siyuan},
      title        = {{I}nvestigation of {L}ower {B}oundary {C}onditions of
                      {B}rominated {V}ery {S}hort-lived {S}pecies ({VSLS})},
      volume       = {637},
      school       = {Wuppertal},
      type         = {Dissertation},
      address      = {Jülich},
      publisher    = {Forschungszentrum Jülich GmbH Zentralbibliothek, Verlag},
      reportid     = {FZJ-2024-05235},
      isbn         = {978-3-95806-770-7},
      series       = {Schriften des Forschungszentrums Jülich Reihe Energie $\&$
                      Umwelt / Energy $\&$ Environment},
      pages        = {2, iii, 160},
      year         = {2024},
      note         = {Dissertation, Wuppertal, 2024},
      abstract     = {Photochemical reactions with the reactive halogen atoms Cl
                      and Br mostly cause stratospheric ozone depletion. The
                      chlorine- and bromine-containing very short-lived species
                      (VSLS), which have an atmospheric lifetime of less than six
                      months, play an essentialrole in stratospheric total bromine
                      loading. However, there is considerable uncertainty about
                      the geographical distribution of their sources, and
                      therefore, it is challenging to reproduce the observations.
                      In order to describe the stratospheric or regional abundance
                      of bromine from VSLS, it is of great importance to quantify
                      the lower boundary conditions of these species. In order to
                      increase our understanding of the role of brominated species
                      in the stratosphere, the Chemical Lagrangian Model of the
                      Stratosphere (CLaMS) has been used to investigate the global
                      surface mixing ratio and lower boundary conditions for the
                      simulation in this thesis. The simulation uses a
                      ‘top-down’ approach, where atmospheric measurements from
                      aircraft are used in combination with models to quantify and
                      refine the lower boundary emissions. Firstly, for the
                      representation of tropospheric bromine chemistry, the scheme
                      incorporates bromine-containing species and related chemical
                      decomposition reactions into CLaMS, which include photolysis
                      and reactions with Cl, O(1D), and OH. Using a box model,
                      this chemistry scheme was successfully tested and
                      transferred to the more comprehensive global 3D chemical
                      transport model, MESSy-CLaMS.Secondly, for the
                      representation of tropospheric bromine chemistry, a
                      parameterization for the washout of the inorganic bromine
                      species HBr and HOBr in the troposphere by cloud uptake was
                      incorporated. To enhance the representation of the transport
                      scheme, additional tropospheric mixing and vertical
                      transport by convection were adopted employing the
                      MESSy-CLaMS 2.0 version. Finally, to investigate the lower
                      boundary conditions of the two most significant bromine
                      VSLS, CHBr3 and CH2Br2, the CLaMS model constructed the
                      zonal symmetric seasonal dependent lower boundary, the
                      seasonal and monthly dependent regionally resolved lower
                      boundary map},
      cin          = {ICE-4},
      cid          = {I:(DE-Juel1)ICE-4-20101013},
      pnm          = {2112 - Climate Feedbacks (POF4-211)},
      pid          = {G:(DE-HGF)POF4-2112},
      typ          = {PUB:(DE-HGF)3 / PUB:(DE-HGF)11},
      urn          = {urn:nbn:de:0001-20241111120825393-5156556-4},
      doi          = {10.34734/FZJ-2024-05235},
      url          = {https://juser.fz-juelich.de/record/1030129},
}